Twitter censors Brownstone Institute's article about how Long COVID-19 symptoms may be linked to masks: The Brownstone Institute, "[a] social, public health and economic research nonprofit," published an article titled "How Masking Contributes to Long Covid." The organization shared a link to this article on its Twitter account, adding "Increased exposure to microplastics, nanoparticles, chemicals in masks, and nasopharyngeal tests parallel many of the symptoms that define Long Covid." Twitter applied a "Misleading" label to this tweet. Additionally, the platform prevented the tweet from being liked, replied to or shared without being quote tweeted.